Latest News Wires Tornado swarms on the rise?

Total tornado tallies have remained steady, but the nature of tornado outbreaks has changed. Now, long dry spells are punctuated by tornado swarms.

By , Livescience.com

NOAA

Tornadoes are touching down in clusters more often than 50 years ago, a new study reports. On some days, more than 30 twisters strike the United States.